D+s production at central rapidity in pp collisions at = 7 TeV and in Pb_Pb collisions at = 2.76 TeV with the ALICE detector

Workshop for Young Scientists on the Physics of Ultrarelativistic Nucleus–Nucleus Collisions 2012

Innocenti, Gian Michele^1

Università Degli Studi di Torino, INFN, Torino, Italy^1

关键词: D-mesons;    Hadronic decays;    Measurements of;    Pb-Pb collisions;    Pp collisions;    Transverse momenta;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/446/1/012040/pdf
DOI  :  10.1088/1742-6596/446/1/012040

来源: IOP

【 摘 要 】

We present the measurements of the D+sproduction in pp collisions at 7 TeV and in Pb-Pb collisions at 2.76 TeV performed in the central rapidity region with the ALICE detector through the reconstruction of the hadronic decay channel D+s→ φπ+→ K+K-π+. The ratios of the yields of D+sand non-strange D mesons as a function of the transverse momentum are also shown for both pp and Pb-Pb collisions.